Commonly prescribed drugs affect decisions to harm oneself and others

Healthy people given the serotonin-enhancing antidepressant citalopram were willing to pay almost twice as much to prevent harm to themselves or others than those given placebo drugs in a moral decision-making experiment...

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Fascinating! The next step would be to find out whether other drugs of the same class as citalopram (SSRIs) have similar effects. This might let us nail down the exact pathways in the brain that are responsible for these decisions.